I was just listening to some stuff, and thought, "Hey, why not share?" So here are a few songs for your consideration/enjoyment.
My absolute favorite Sinatra song.
Any potential husband that may ever see this: This will be our wedding song. Deal.
...*incoherent babble* This is the cut from a movie.
And this, just because it's hilarious. Dean didn't rehearse his show much, and to watch him and Sinatra cut up is great.
Also great: Bing Crosby
I love Elvis movies and I'm not ashamed.
Ricky Nelson--yayz.
The first song I ever heard Dean Martin sing 
This is the album cut, rather than the Rio Bravo movie cut. Fun fact: The horse in most of the shots is actually his own horse, Topps, that he trained to trick ride etc. (His Epona. What? I had to get it in there somewhere, right?)